package com.fiberhome.boot.conf.jpa;

import java.util.Map;
import java.util.Properties;

import javax.persistence.EntityManager;
import javax.sql.DataSource;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.orm.jpa.JpaProperties;
import org.springframework.boot.orm.jpa.EntityManagerFactoryBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
        entityManagerFactoryRef="entityManagerFactorySecondary",
        transactionManagerRef="transactionManagerSecondary",
        basePackages= { "com.fiberhome.boot.demo.secondary.dao" })
public class OracleJpaConfig {
    
	@Autowired 
	@Qualifier("oracleDataSource")
    private DataSource oracleDataSource;
    
	@Bean(name = "entityManagerSecondary")
    public EntityManager entityManager(EntityManagerFactoryBuilder builder) {
        return entityManagerFactorySecondary(builder).getObject().createEntityManager();
    }
    @Bean(name = "entityManagerFactorySecondary")
    public LocalContainerEntityManagerFactoryBean entityManagerFactorySecondary (EntityManagerFactoryBuilder builder) {
    	LocalContainerEntityManagerFactoryBean em = builder
                .dataSource(oracleDataSource)
                .packages("com.fiberhome.boot.demo.secondary.domain") //设置实体类所在位置
                .persistenceUnit("oracle")
                .properties(getVendorProperties(oracleDataSource))
                .build();
        Properties properties = new Properties();
        properties.setProperty("hibernate.dialect", "org.hibernate.dialect.OracleDialect");
        em.setJpaProperties(properties);
        return em;
    }

    @Autowired
    private JpaProperties jpaProperties;
    private Map<String, String> getVendorProperties(DataSource dataSource) {
        return jpaProperties.getHibernateProperties(dataSource);
    }

    @Bean(name = "transactionManagerSecondary")
    PlatformTransactionManager transactionManagerSecondary(EntityManagerFactoryBuilder builder) {
        return new JpaTransactionManager(entityManagerFactorySecondary(builder).getObject());
    }

}